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ORD to RDU: distance & flight time
Chicago (Chicago O'Hare International Airport) → Raleigh-durham (Raleigh Durham International Airport)
646 mi
1,039 km · 561 nm
1h 52m
estimated nonstop flight time
+1h
time difference · heading southeast
See live ORD→RDU fares Phone-only fares on this route — call free
Flight time details
646 miles nonstop takes roughly 1h 52m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- ORD — Chicago O'Hare International Airport · Chicago, United States
- RDU — Raleigh Durham International Airport · Raleigh-durham, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near ORD
- PWK · Chicago Executive Airport9 mi away
- MDW · Chicago Midway International Airport15 mi away
- CGX · Chicago Meigs Airport17 mi away
- DPA · Dupage Airport18 mi away
Near RDU
- POB · Pope Field50 mi away
- RWI · Rocky Mount Wilson Regional Airport50 mi away
- FBG · Simmons Army Air Field52 mi away
- SOP · Moore County Airport56 mi away
Frequently asked questions
How far is ORD from RDU?
The flight distance from Chicago (ORD) to Raleigh-durham (RDU) is 646 miles (1,039 km, 561 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ORD to RDU?
A nonstop flight takes about 1h 52m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Chicago and Raleigh-durham?
Raleigh-durham is 1 hour ahead of Chicago.
What is the cheapest way to fly from ORD to RDU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ORD–RDU that never appear on search engines, with no booking fees.